const path = require("path");
const HTMLWebpackPlugin = require("html-webpack-plugin");
module.exports = {
  entry: "./src/index.ts",
  output: {
    path: path.resolve(__dirname, "dist"),
    filename: "main.js",
    clean: true,
    environment: {
      arrowFunction: false,
    },
  },
  mode:'development',
  module: {
    rules: [
      {
        test: /\.ts$/,
        use: [
          {
            loader: "babel-loader",
            options: {
              presets: [
                [
                  "@babel/preset-env",
                  {
                    targets: {
                      chrome: "88",
                    },
                    corejs: "3",
                    useBuiltIns: "usage",
                  },
                ],
              ],
            },
          },
          "ts-loader",
        ],
        exclude: /node_modules/,
      },
      {
        test:/\.less$/,
        use:[
          'style-loader',
          'css-loader',
          {
            loader:'postcss-loader',
            options:{
              postcssOptions:{
                plugins:[
                  [
                    'postcss-preset-env',
                    {
                      browsers:'last 2 versions'
                    }
                  ]
                ]
              }
            }
          },
          'less-loader'
        ]
      }
    ],
  },
  plugins: [
    new HTMLWebpackPlugin({
      template:'./src/index.html'
    }),
  ],
  resolve: {
    extensions: [".ts", ".js"],
  },
};
